Synopsis: When the prince of the spirit realm offers Yuusuke an opportunity to regain his life through a series of missions, he teams up withex-rival, Kazuma Kuwabara, and two powerful demons, Hiei and Kurama, to help him get the jobs done.
This baby is an oldie but a goodie.
And for those opposed to old-style animation, if you love HunterxHunter then you'll love this anime. So frankly, get over your bias or you'll miss out on an amazing story.
Think HunterxHunter but with a bigger OG crew and a lead that has a side of himself that he doesn't even know he has yet. In that way, this anime is also like Bleach and Naruto; the lead character, Yuusuke always levels up to beat his opponent and it's always a sight to behold.
One could argue Yu Yu Hakusho is the father of current anime themes that Naruto, Bleach, HunterxHunter (written by the same person), and even My Hero Academia, currently adapt to tell their own stories.
If this anime can inspire a whole new generation of amazing stories, it's definitely worth your time. I'd also suggest taking the chance on Yu Yu Hakusho's movies as well. If I had a list of best anime movies, Yu Yu would be on that as well.